[collectd] Using aggregation with disk plugin

[Kerim Gokarslan -T (kgokarsl - AAP3 INC at Cisco)]

Hi,

I’m trying to aggregate disk statistics (disk ops and disk octets), but I couldn’t manage to find which Type name I am supposed to use. This is my configuration using disk_ops_complex as a type name.

<Plugin "aggregation">
  <Aggregation>
    Plugin "disk"
    Type "disk_ops_complex"

    GroupBy "Host"
    GroupBy "TypeInstance"

    CalculateSum true

  </Aggregation>
</Plugin>

and this doesn’t aggregate at all. When I use “disk_ops” or “disk_octets” as type names, the aggregation plugin fails with saying using more than one data source is not supported. (because disk_ops or disk_octets have two data sources (read & write))
I also tried to define custom types (read and write) in types.db, but that doesn’t work. I searched through your mailing list achieve, docs and FAQs but couldn’t find a case using aggregation plugin with disk plugin. My question is that does aggregation plugin supports disk plugin, if so; what should be the aggregation configuration?

Regards,
Kerim Gokarslan


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